Book Image

Learn AWS Serverless Computing

By : Scott Patterson
Book Image

Learn AWS Serverless Computing

By: Scott Patterson

Overview of this book

Serverless computing is a way to run your code without having to provision or manage servers. Amazon Web Services provides serverless services that you can use to build and deploy cloud-native applications. Starting with the basics of AWS Lambda, this book takes you through combining Lambda with other services from AWS, such as Amazon API Gateway, Amazon DynamoDB, and Amazon Step Functions. You’ll learn how to write, run, and test Lambda functions using examples in Node.js, Java, Python, and C# before you move on to developing and deploying serverless APIs efficiently using the Serverless Framework. In the concluding chapters, you’ll discover tips and best practices for leveraging Serverless Framework to increase your development productivity. By the end of this book, you’ll have become well-versed in building, securing, and running serverless applications using Amazon API Gateway and AWS Lambda without having to manage any servers.
Table of Contents (20 chapters)
Free Chapter
1
Section 1: Why We're Here
4
Section 2: Getting Started with AWS Lambda Functions
9
Section 3: Development Patterns
12
Section 4: Architectures and Use Cases

Using Amazon S3 with Lambda

S3 (short for Simple Storage Service) is a fully managed object storage service that you can use to store objects. It is inherently fault-tolerant, durable, and is said to have unlimited storage capacity.

In this section, we'll discover how to create an event source trigger from S3 and how to upload and download objects using the AWS SDK.

Revision

Let's have a bit of a recap to see why S3 would be such a good fit for storing objects in a serverless application. First, why am I talking about objects in a storage system instead of files? S3 is an object storage system as opposed to block storage with a file system layered on top. Each piece of data is considered an object, and these are...